What are george polya's four basic principles of problem solving?

Which 2-digit numbers have palindromic squares? Do some parallelograms have equal diagonals true or false? What is 1 percent of 21.00? What values do we plot on the y - axis of a graph? Price for 1 metric ton of organic oranges? What is 223 rounded? Why does it work when you multiply length times width and get area? What is the conversion of 1.2 miles in 30 minutes to meters? What is 11-100 in simplest form? What time is it when the hour hand and the hand are both pointing to the same number? What do you multiply to decrease an amount by 45 percent? If a six sided die is tossed three times and 4 shows up three times what is the probability of 4 on the fourth trial? What is seventeen eighths in simplest form? What is 50 percent of 200GB - in MB? What is the distance traveled at a speed of 60km per hour for 2 hours? What is the word for of .000018? Name the levels of organization in order from smallest to largest? Calculate the speed of a dog running through a field if he is covering 23.7 meters in 54 seconds? What is a figure made up of two or more three-dimensional figures? Is 3.30 in the afternoon am or pm?